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Software Engineer Security Clearance

Job in San Antonio, Bexar County, Texas, 78208, USA
Listing for: Radiance Technologies
Full Time position
Listed on 2026-06-01
Job specializations:
  • Software Development
    Web Developer, Software Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Software Engineer with Security Clearance

Radiance Technologies is an employee-owned company with benefits that are unmatched by most companies in the Defense/Aerospace market. Employee ownership, generous 401K, full health/dental/life/vision insurance benefits, interesting assignments, educational reimbursement, competitive salaries and a pleasant work environment combine to make Radiance Technologies a great place to work and succeed.

Key Responsibilities
  • Collaborate with government stakeholders to meet technical and operational objectives.
  • Participate in all phases of the software development lifecycle using Agile or other industry-standard methodologies.
  • Provide regular progress updates and rigorous testing documentation.
  • Support the integration of semantic web technologies into the SaaS portal, enabling advanced data querying, relationship mapping, and knowledge graph construction.
Required Skills & Experience
  • Bachelor’s degree or higher in Computer Science, Software Engineering, or related STEM field.
  • Active TS Clearance with ability to receive SCI.
  • Minimum of 5 years’ experience in software engineering or related field.
  • Minimum of 5 years’ experience with software development lifecycle and methodologies.
  • Prior experience in SPARQL query development and graph database technologies (RDF, OWL, etc).
  • Prior experience supporting the integration of semantic web technologies into the SaaS portal.
  • Semantic Web Technologies.
  • SPARQL query development.
  • Resource Description Framework (RDF).
  • Ontology Web Language (OWL).
  • Experience constructing and querying knowledge graphs.
  • Graph database experience (Graph

    DB, Stardog, Neo4j with RDF plugins, or similar triple stores).
  • Hands‑on experience with graph databases.
  • Software development.
  • Proficiency in Python, Java, JavaScript, C#.
  • Data integration and ETL.
  • Experience ingesting, transforming, and linking disparate data sources into graph structures.
  • Ability to develop data pipelines that support semantic enrichment and ontology-driven modeling.
  • Strong communication and organizational skills.
  • U.S. citizenship.
  • Familiarity with software ontology and triple-store databases.
  • Familiarity with building HTTP-based web services (JavaScript, Java Spring Boot, etc).
  • Familiarity with source management repositories such as Git, Apache Subversion, Bit Bucket.
  • Familiarity with secure software development practices.
  • Familiarity with data description languages: XML, YAML, JSON, JSON‑LD.
Desired Qualifications
  • Active TS/SCI clearance.
  • Experience supporting Department of Defense or Electromagnetic Spectrum Operations (EMSO) programs.

Radiance Technologies is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.

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